Apparatus for making sheet metal



No Model.) 2 Sheets-Sheet I.

E. NORTON & J.G.` HoDGsoN. APPARATUS POR MAKING SHEET METAL.

(No Model.) 2 Sheets-Sheet 2'.

E. NORTON & J. G. HODGSON. APPARATUS EOE MAKING SHEET METAL.

No. 406,945. Patented July 16, 1889.

` A/a/zrf @Ma/yawn 3y va-M5519@ Nrs TATES PATENT OFFCE.

EDIYIN NORTON AND' JOHN G. HODGSON, OF MAYlVOOD, ASSIGNORS TO SAIDNORTON, AND OLIVER V. NORTON, OF CHICAGO, ILLINOIS.

APPARATUS FOR MAKING SHEET METAL.

SPECIFICATION forming part of Letters Patent Nn 406,945, dated July I6,1889. Application med Aprii, 1889. serian.. 306,206. (remodel.)

To all whomit may concern:

Be it known that we, EDWIN NORTON andl JOHN G. HoDGsoN, citizens of theUnited States, residing in Maywood, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Apparatus forMaking Sheet Metal, of which thefollowing is a specification.

Our invention relates to improvements in- IO apparatus for making sheetmetal, and more particularly to improvements upon the apparatusheretofore patented by us in Letters Patent No. 382,319, dated May 8,1888.

The object of our present improvement is i 5 to provide means forgoverning the space between the revolving rolls by which the strealn ofmolten metal is converted into sheet metal,

so that the sheet metal produced maybe made of uniform thickness'throilgllout'and not. be

zo subject to the variations due to the expansion or contraction of themetal rolls, the springing of the frame-work, or other causes. The meanswhich We employ to accomplish this result consists in providing each ofthe metal rolls with apair of collars orperipheral faces which bearagainst like collars on the opposite roll, so`that the working-faces ofthe two rolls cannot crowd closer together when the rolls expand bytheheat. Between the 3o rolling faces or collars and the working-faces ofthe rolls we also provide peripheral grooves or recesses toinake roomfor excess of metal due to any variation in the rate at which the moltenmetal is poured between the rolls.

3 5 The working-faces of the rolls in our present improvement, as in ourprevious patent, No. 382,319, are made wider than the strip of sheetmetal desired to be produced, so that any vari ation in the rate ofpouring the molten 4o metal may be compensated for by variations in thewidth of the strip of sheet metal produced. The annular grooves betweenthe working-faces and the rolling-faces of the rolls also giveadditional rogm or space to receive any excess of metal in case thereshould be any great variation in the rate of pouring.

Another feature of our improvement consists in combining with thechilling-rolls and pouring-nozzle a pair of finishing-rolls and a 5oguide chute or passage extending from the chilling-rolls to thefinishing-rolls, so that the she'etor strip of metal produced maybeturned into a horizontal direction as it issues from the chilling-rolls.This second pair of rolls also serves to finish or further roll thesheet as it is produced while it is still ata comparatively hightemperature.

In the accompauyingdrawings, which form a part of the specification,Figure l is a plan view of a device or apparatus embodying our 6oinvention, and Fig. 2 is a central vertical section of the same on theline l 2 of Fig. l.

.In the drawings, A represents the frame of the machine. B B are thehollow chillingrolls, having the smooth working peripheral faces I),which revolve together, with a space between the rolls equal to thethickness of the sheet Vmetal tolle produced. D `is the pouring' bowl orvessel, having an opening d,

through which the stream of molten metal 7o V issues directly downwardbetween the two hollow rolls B B and in a direction tangential to both.This pouring-bowl is furnished with a valve d for opening and closingthe discharge-orifice (Z. The general construction of the hollow rolls,the pouring nozzle or bowl, the mechanism for revolving or driving therolls, the means for causing the water to circulate through the hollowrolls, and other parts ofl the machine are or may be the same 8c as thatshown and described in` our previous patent, before referred to; and asour present improvement does not particularly relate to these featureswe' do not deem it necessary to show or describe the same in detail, butwould refer to our previous patent for a more complete description ofsuch parts.

The hollow rolls B B are provided on each side of the working-faces b ofthe rolls with rolling faces or collars or stops b2, which roll 9otogether and thus limit the extent to which the working-faces b mayapproach cach other and the size of the space or passage b between suchworking-faces of the rolls. Between the stop collars or faces b2 of therolls 95 and the working-faces b we also provide each of the rolls withgrooves b3, which grooves may receive any excess of metal that may issuefrom the pouring-nozzle.

C is a curved guidefor detlecting or de- Ioo livering the sheetfmetalstrips f to the horisurface speed.

zontally-arranged rolls G G. The rolls G G may be revolved in anysuitable manner; but they are preferably geared with the rollsB B,for-convenience in driving them .at Jthe same The rolls G G, whichreceive the sheet1netal strip in ahorizontal position, also serve, ormay serve, to further roll oriinish the sheet. 'The curved guide C isespecially serviceable for guiding or directing the end of thesheet-metall strip between the rolls G G when the operation begins.After the end of the strip, as indicated at s in the drawings, isstarted between the rolls G G it will naturally bend or curve by its ownweight, and `the curved guide C is not at this part of the operation sonecessary. The rolls B B, as well as the rolls G G, are also to berevolved at a surface speed equal to or greater than the velocity of thestream oi' molten met-al issuing from the pouring-vessel D. The curvedguide() also serves to give a little slack between the chilling-rolls Band the,polishing rolls G, to compensate lfor any momentary 4diiterenceof speed or slipping of the rolls.`

We claimf 1. `The combination'of two revolving chillin g-rolls IBv Bwith a pouring-vessel above and between them, said rolls B B havingWorkingfaces l) b and rollingfaces or collars b2b?, serving' as stops toregulate the space between the working-faces of the rolls, substantiallyas specified.

'- above and between them,

guide, substantially 2. The combination, with a pair of revolvingchilling-rolls, of a pouring-nozzle ar 35 said rolls havingworking-faces and rolling-faces outranged above and between them,

sidev of the working-faces, and grooves or recesses between the rolling-faces and the working-faces, substantially as specified.

3. The combination, ing chillin g-rolls, of a pouring-vessel arrangedand a sec'ond'pair of rolls G G, substantially as specified.

' 4. The combination', with a pair of chillingrolls andpouring-vesselarranged above and between them, of a curved guide for deflectingA andchilling-rolls, of finishing-rolls, substanf ltially as specified. s

EDWIN NGRTONr JOHN G. HODGSON.

Witnesses:

H. M. MUNDAY, EDMUNn AnCooK.

delivered by said pair `of chilling-rolls,

